CN213512092U

CN213512092U - Stop valve with protective structure

Info

Publication number: CN213512092U
Application number: CN202021445205.8U
Authority: CN
Inventors: 徐培德
Original assignee: Zigong Industrial Valve Manufacture Co ltd
Current assignee: Zigong Industrial Valve Manufacture Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-06-22
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses a stop valve with a protective structure, which comprises a pipe body, a through pipe, a top cover, a sealing cover and a built-in sleeve, the two ends of the pipe body are both fixed with flange plates, the middle part inside the pipe body is obliquely fixed with a clapboard, a through groove is arranged in the middle of the clapboard, the penetrating pipe penetrates through the middle of the upper end of the pipe body, the top cover is fixed at the upper end of the through pipe, the built-in sleeve is fixed at the inner side of the top cover, a fixed block is fixed at the upper end of the inside of the built-in sleeve, a limit groove is arranged on the fixed block, a sliding plate is slidably arranged at the lower end of the inner part of the built-in sleeve, a pressing plate is arranged at the upper end of the inner part of the built-in sleeve, a sealing sleeve is arranged at the opening of the upper end surface of the top cover, and a second connecting rod is arranged in the sealing sleeve in a sliding manner, a rotating ring is fixed at the upper end of the second connecting rod, and the lower end of the second connecting rod is fixed in the middle of the upper end face of the pressing plate. The utility model discloses possess protective structure, ensure device life and equally divide the atress, improve the advantage of protectiveness.

Description

Stop valve with protective structure

Technical Field

The utility model relates to a stop valve technical field specifically is a stop valve with protective structure.

Background

The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur. The connection mode is divided into three types: flange connection, screw thread connection and welding connection. After the self-sealing valve appears, the medium flow direction of the stop valve is changed to enter the valve cavity from the upper part of the valve clack, at this time, under the action of medium pressure, the force for closing the valve is small, the force for opening the valve is large, and the diameter of the valve rod can be correspondingly reduced. At the same time, this type of valve is also relatively tight under the action of the medium.

The existing stop valves do not have a protection structure in the use process, most stop valves operated through threads are easy to slip in the long-term use process, the use condition cannot be caused, and the stop valves are very inconvenient to use; in addition, the existing stop valve only realizes the bearing of force through a simple thread structure in the process of sealing the pipeline, the service life is short, the thread structure is stressed greatly, and the damage is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stop valve with protective structure possesses protective structure, ensures device life and equally divide the atress, improves the advantage of protectiveness, solves current equipment and does not possess the protectiveness, fragile and atress inequality, the poor problem of practicality.

In order to achieve the above object, the utility model provides a following technical scheme: a stop valve with a protective structure comprises a pipe body, a through pipe, a top cover, a sealing cover and a built-in sleeve, the two ends of the pipe body are both fixed with flange plates, the middle part of the inside of the pipe body is obliquely fixed with a clapboard, a through groove is arranged in the middle of the clapboard, the penetrating pipe penetrates through the middle of the upper end of the pipe body, the top cover is fixed at the upper end of the through pipe, the built-in sleeve is fixed at the inner side of the top cover, a fixed block is fixed at the upper end of the inside of the built-in sleeve, a limit groove is arranged on the fixed block, a sliding plate is arranged at the lower end of the inner part of the built-in sleeve in a sliding way, a pressure plate is arranged at the upper end inside the built-in sleeve, a sealing sleeve is arranged at the opening of the upper end surface of the top cover, and a second connecting rod is arranged in the sealing sleeve in a sliding manner, a rotating ring is fixed at the upper end of the second connecting rod, and the lower end of the second connecting rod is fixed in the middle of the upper end face of the pressing plate.

Preferably, the upper end of the through pipe and the lower end of the top cover are both fixed with connecting rings, the two connecting rings are connected through bolts, and the built-in sleeve is positioned on the inner sides of the through pipe and the top cover.

Preferably, springs are fixed on two sides of the bottom end of the inner portion of the built-in sleeve, the upper ends of the springs are fixed on the lower end face of the sliding plate, and the sliding plate is matched with the pressing plate.

Preferably, the pressing plate and the limiting groove are both in a cross design and are matched with each other, a limiting ring is fixed at the lower end of the second connecting rod, and the limiting ring is located on the upper side of the built-in sleeve.

Preferably, a first connecting rod is fixed in the middle of the lower end face of the sliding plate, penetrates through the built-in sleeve and is fixed on the sealing cover, and the sealing cover corresponds to the through groove.

Preferably, a sealing ring is arranged at a middle opening of the sealing sleeve and is made of rubber, the first connecting rod is attached to the sealing ring, and the rotating ring is located on the upper side of the sealing sleeve.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up built-in cover and fixed block, when using, the operator connects the ring flange at this device body both ends with the connecting pipe, the rotating ring of upper end is rotated, make the rotating ring drive the second connecting rod and push down, the lower extreme of second connecting rod drives the clamp plate and passes the extrusion sliding plate after the spacing groove on the fixed block, the sliding plate drives the sealed lid through the decline of first connecting rod and realizes sealing to the logical groove of baffle, realize the limited to the distance of pushing down through the spacing ring, push down the bottom after the upper end face that the spacing ring contacts built-in cover, avoid the damage of sealed lid that the extreme pressure intensity causes, rotate the rotating ring according to the indicator of top cap after finishing pushing down, the rotating ring drives the clamp plate to rotate through the second connecting rod, the clamp plate rotates and misplaces with the spacing groove after forty-five degrees of angle, the device realizes ending to the circulation of liquid in the pipeline, the resilience through the spring drives the sealing cover to reset, and at the moment, liquid circulates through the through groove, so that the device is simple in structure, stress is applied when the fixing block is arranged, the stress of the fixing block is even, the service life is long, and the sealing cover structure is protected through the limiting ring, so that the service life is prolonged.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic sectional view of the inner sleeve of the present invention;

fig. 4 is a schematic view of the top view structure of the fixing block of the present invention.

In the figure: 1. a flange plate; 2. a pipe body; 3. penetrating the pipe; 4. a connecting ring; 5. sealing sleeves; 6. a top cover; 7. a rotating ring; 8. a through groove; 9. a partition plate; 10. a sealing cover; 11. a first connecting rod; 12. a second connecting rod; 13. a limiting ring; 14. a built-in sleeve; 15. a fixed block; 16. pressing a plate; 17. a sliding plate; 18. a spring; 19. a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a stop valve with protective structure, including body 2, run through pipe 3, top cap 6, sealed lid 10 and built-in cover 14, the both ends of body 2 all are fixed with ring flange 1, the slope of department is fixed with baffle 9 in the middle of the inside of body 2, logical groove 8 has been seted up to the middle department of baffle 9, run through pipe 3 and run through and install department in the middle of the upper end of body 2, top cap 6 is fixed in the upper end of running through pipe 3, the upper end of running through pipe 3 and the lower extreme of top cap 6 all are fixed with go-between 4, and two go-between 4 are connected through the bolt, built-in cover 14 is located and runs through pipe 3 and top cap 6.

The built-in sleeve 14 is fixed on the inner side of the top cover 6, the inner upper end of the built-in sleeve 14 is fixed with a fixed block 15, the fixed block 15 is provided with a limit groove 19, the inner lower end of the built-in sleeve 14 is slidably provided with a sliding plate 17, the inner upper end of the built-in sleeve 14 is provided with a pressing plate 16, two sides of the inner bottom end of the built-in sleeve 14 are respectively fixed with a spring 18, the upper end of the spring 18 is fixed on the lower end face of the sliding plate 17, the sliding plate 17 is matched with the pressing plate 16, the opening of the upper end face of the top cover 6 is provided with a sealing sleeve 5, the sealing sleeve 5 is slidably provided with a second connecting rod 12, the pressing plate 16 and the limit groove 19 are both in a cross shape, the pressing plate 16 is matched with the limit groove 19, the lower end of the second connecting rod 12 is fixed with a limit ring 13, the limit ring 13 is positioned on, the sealing cover 10 corresponds to the through groove 8.

A rotating ring 7 is fixed at the upper end of the second connecting rod 12, the lower end of the second connecting rod 12 is fixed at the middle of the upper end face of a pressing plate 16, a sealing ring is arranged at the middle opening of the sealing sleeve 5 and is made of rubber, the first connecting rod 11 is attached to the sealing ring, the rotating ring 7 is positioned at the upper side of the sealing sleeve 5, when the device is used, an operator connects the flange plates 1 at the two ends of the device pipe body 2 with connecting pipes, the rotating ring 7 at the upper end is rotated to enable the rotating ring 7 to drive the second connecting rod 12 to press downwards, the lower end of the second connecting rod 12 drives the pressing plate 16 to penetrate through a limiting groove 19 on a fixing block 15 to extrude a sliding plate 17, the sliding plate 17 drives a sealing cover 10 to seal a through groove 8 of a partition plate 9 through the descending of the first connecting rod 11, the descending distance is limited through, avoid the dynamics of pushing down too big damage that causes sealed lid 10, according to the indicator rotation swivel becket 7 of top cap 6 after finishing pushing down, swivel becket 7 drives clamp plate 16 through second connecting rod 12 and rotates, clamp plate 16 rotates behind the forty-five degree angle and misplaces with spacing groove 19, the device is realized ending to the circulation of liquid in the pipeline this moment, after rotating swivel becket 7 forty-five degree angle again, kick-back through spring 18 drives sealed lid 10 and resets, liquid realizes the circulation through logical groove 8 this moment, this device simple structure, atress when ending is carried out through the setting of fixed block 15, fixed block 15 atress is even, long service life, and realize the protection to sealed 10 structures through spacing ring 13, and service life is prolonged.

The working principle is as follows: when the utility model is used, an operator connects the flange plates 1 at two ends of the pipe body 2 of the device with the connecting pipes, rotates the rotating ring 7 at the upper end to drive the second connecting rod 12 to press down, the lower end of the second connecting rod 12 drives the pressing plate 16 to pass through the limiting groove 19 on the fixed block 15 to extrude the sliding plate 17, the sliding plate 17 drives the sealing cover 10 to seal the through groove 8 of the partition plate 9 through the descending of the first connecting rod 11, the descending distance is limited through the limiting ring 13, when the limiting ring 13 contacts the upper end surface of the built-in sleeve 14 and then presses down to the bottom, the damage of the sealing cover 10 caused by overlarge descending pressure is avoided, after finishing the descending, the rotating ring 7 is rotated according to the indicating mark of the top cover 6, the rotating ring 7 drives the pressing plate 16 to rotate through the second connecting rod 12, the pressing plate 16 is dislocated with the limiting groove 19 after rotating by an angle of forty, when the rotating ring 7 is rotated for forty-five degrees, the sealing cover 10 is driven to reset through the resilience of the spring 18, and at the moment, the liquid is circulated through the through groove 8. The working principle of the present invention is the above.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a stop valve with protective structure, includes body (2), runs through pipe (3), top cap (6), sealed lid (10), head rod (11) and built-in cover (14), its characterized in that: the pipe is characterized in that the two ends of the pipe body (2) are both fixed with flange plates (1), the middle part of the inside of the pipe body (2) is obliquely fixed with a partition plate (9), the middle part of the partition plate (9) is provided with a through groove (8), the through pipe (3) is installed at the middle part of the upper end of the pipe body (2) in a penetrating way, the top cover (6) is fixed at the upper end of the through pipe (3), the built-in sleeve (14) is fixed at the inner side of the top cover (6), the upper end of the inside of the built-in sleeve (14) is fixed with a fixed block (15), the fixed block (15) is provided with a limit groove (19), the lower end of the inside of the built-in sleeve (14) is slidably provided with a sliding plate (17), the upper end of the inside of the built-in sleeve (14) is provided with a pressing plate (16), the, the upper end of the second connecting rod (12) is fixed with a rotating ring (7), and the lower end of the second connecting rod (12) is fixed in the middle of the upper end face of the pressing plate (16).

2. A stop valve with a protective structure as claimed in claim 1, wherein: the upper end of the through pipe (3) and the lower end of the top cover (6) are both fixed with connecting rings (4), the two connecting rings (4) are connected through bolts, and the built-in sleeve (14) is located on the inner side of the through pipe (3) and the inner side of the top cover (6).

3. A stop valve with a protective structure as claimed in claim 1, wherein: springs (18) are fixed on two sides of the bottom end of the interior of the built-in sleeve (14), the upper ends of the springs (18) are fixed on the lower end face of the sliding plate (17), and the sliding plate (17) is matched with the pressing plate (16).

4. A stop valve with a protective structure as claimed in claim 1, wherein: the pressing plate (16) and the limiting groove (19) are both in a cross shape, the pressing plate (16) is matched with the limiting groove (19), the limiting ring (13) is fixed at the lower end of the second connecting rod (12), and the limiting ring (13) is located on the upper side of the built-in sleeve (14).

5. A stop valve with a protective structure as claimed in claim 1, wherein: a first connecting rod (11) is fixed in the middle of the lower end face of the sliding plate (17), the first connecting rod (11) penetrates through the built-in sleeve (14) and then is fixed on the sealing cover (10), and the sealing cover (10) corresponds to the through groove (8).

6. A stop valve with a protective structure as claimed in claim 1, wherein: the middle opening of seal cover (5) is equipped with the sealing washer, and the sealing washer is the rubber material, head rod (11) laminating sealing washer, swivel becket (7) are located the upside of seal cover (5).